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tests: Rework the way foreigndrawing works
Instead of the weird PathElt struct, generate a quick-n-dirty parser that parses CSS selectors into GtkWidgetPath elements. Based on a patch by Benjamin Otte.
This commit is contained in:
Matthias Clasen
parent
c543712551
commit
bc020fdeb7
@ -18,15 +18,107 @@
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#include <gtk/gtk.h>
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typedef struct {
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GType type;
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const gchar *name;
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const gchar *class1;
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const gchar *class2;
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} PathElt;
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#include <string.h>
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static void
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append_element (GtkWidgetPath *path,
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const char *selector)
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{
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static const struct {
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const char *name;
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GtkStateFlags state_flag;
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} pseudo_classes[] = {
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{ "active", GTK_STATE_FLAG_ACTIVE },
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{ "hover", GTK_STATE_FLAG_PRELIGHT },
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{ "selected", GTK_STATE_FLAG_SELECTED },
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{ "disabled", GTK_STATE_FLAG_INSENSITIVE },
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{ "indeterminate", GTK_STATE_FLAG_INCONSISTENT },
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{ "focus", GTK_STATE_FLAG_FOCUSED },
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{ "backdrop", GTK_STATE_FLAG_BACKDROP },
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{ "dir(ltr)", GTK_STATE_FLAG_DIR_LTR },
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{ "dir(rtl)", GTK_STATE_FLAG_DIR_RTL },
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{ "link", GTK_STATE_FLAG_LINK },
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{ "visited", GTK_STATE_FLAG_VISITED },
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{ "checked", GTK_STATE_FLAG_CHECKED },
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{ "drop(active)", GTK_STATE_FLAG_DROP_ACTIVE }
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};
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const char *next;
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char *name;
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char type;
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guint i;
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next = strpbrk (selector, "#.:");
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if (next == NULL)
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next = selector + strlen (selector);
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name = g_strndup (selector, next - selector);
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if (g_ascii_isupper (selector[0]))
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{
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GType gtype;
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gtype = g_type_from_name (name);
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if (gtype == G_TYPE_INVALID)
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{
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g_critical ("Unknown type name `%s'", name);
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g_free (name);
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return;
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}
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gtk_widget_path_append_type (path, gtype);
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}
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else
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{
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/* Omit type, we're using name */
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gtk_widget_path_append_type (path, G_TYPE_NONE);
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gtk_widget_path_iter_set_object_name (path, -1, name);
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}
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g_free (name);
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while (*next != '\0')
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{
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type = *next;
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selector = next + 1;
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next = strpbrk (selector, "#.:");
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if (next == NULL)
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next = selector + strlen (selector);
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name = g_strndup (selector, next - selector);
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switch (type)
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{
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case '#':
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gtk_widget_path_iter_set_name (path, -1, name);
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break;
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case '.':
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gtk_widget_path_iter_add_class (path, -1, name);
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break;
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case ':':
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for (i = 0; i < G_N_ELEMENTS (pseudo_classes); i++)
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{
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if (g_str_equal (pseudo_classes[i].name, name))
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{
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gtk_widget_path_iter_set_state (path,
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-1,
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gtk_widget_path_iter_get_state (path, -1)
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| pseudo_classes[i].state_flag);
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break;
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}
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}
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if (i == G_N_ELEMENTS (pseudo_classes))
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g_critical ("Unknown pseudo-class :%s", name);
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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g_free (name);
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}
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}
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static GtkStyleContext *
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get_style (PathElt *pelt, GtkStyleContext *parent)
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get_style (GtkStyleContext *parent,
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const char *selector)
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{
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GtkWidgetPath *path;
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GtkStyleContext *context;
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@ -36,17 +128,13 @@ get_style (PathElt *pelt, GtkStyleContext *parent)
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else
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path = gtk_widget_path_new ();
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gtk_widget_path_append_type (path, pelt->type);
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if (pelt->name)
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gtk_widget_path_iter_set_object_name (path, -1, pelt->name);
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if (pelt->class1)
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gtk_widget_path_iter_add_class (path, -1, pelt->class1);
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if (pelt->class2)
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gtk_widget_path_iter_add_class (path, -1, pelt->class2);
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append_element (path, selector);
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context = gtk_style_context_new ();
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gtk_style_context_set_path (context, path);
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gtk_style_context_set_parent (context, parent);
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/* XXX: Why is this necessary? */
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gtk_style_context_set_state (context, gtk_widget_path_iter_get_state (path, -1));
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gtk_widget_path_unref (path);
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return context;
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@ -67,15 +155,15 @@ draw_horizontal_scrollbar (GtkWidget *widget,
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GtkStyleContext *slider_context;
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/* This information is taken from the GtkScrollbar docs, see "CSS nodes" */
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PathElt path[3] = {
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{ GTK_TYPE_SCROLLBAR, "scrollbar", "horizontal", NULL },
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{ G_TYPE_NONE, "trough", NULL, NULL },
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{ G_TYPE_NONE, "slider", NULL, NULL }
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const char *path[3] = {
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"scrollbar.horizontal",
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"trough",
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"slider"
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};
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scrollbar_context = get_style (&path[0], NULL);
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trough_context = get_style (&path[1], scrollbar_context);
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slider_context = get_style (&path[2], trough_context);
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scrollbar_context = get_style (NULL, path[0]);
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trough_context = get_style (scrollbar_context, path[1]);
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slider_context = get_style (trough_context, path[2]);
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gtk_style_context_set_state (scrollbar_context, state);
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gtk_style_context_set_state (trough_context, state);
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@ -106,13 +194,13 @@ draw_text (GtkWidget *widget,
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PangoLayout *layout;
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/* This information is taken from the GtkLabel docs, see "CSS nodes" */
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PathElt path[2] = {
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{ GTK_TYPE_LABEL, "label", "view", NULL },
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{ G_TYPE_NONE, "selection", NULL, NULL }
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const char *path[2] = {
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"label.view",
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"selection"
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};
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label_context = get_style (&path[0], NULL);
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selection_context = get_style (&path[1], label_context);
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label_context = get_style (NULL, path[0]);
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selection_context = get_style (label_context, path[1]);
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gtk_style_context_set_state (label_context, state);
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@ -144,13 +232,13 @@ draw_check (GtkWidget *widget,
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GtkStyleContext *check_context;
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/* This information is taken from the GtkCheckButton docs, see "CSS nodes" */
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PathElt path[2] = {
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{ GTK_TYPE_LABEL, "checkbutton", NULL, NULL },
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{ G_TYPE_NONE, "check", NULL, NULL }
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const char *path[2] = {
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"checkbutton",
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"check"
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};
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button_context = get_style (&path[0], NULL);
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check_context = get_style (&path[1], button_context);
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button_context = get_style (NULL, path[0]);
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check_context = get_style (button_context, path[1]);
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gtk_style_context_set_state (check_context, state);
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@ -174,13 +262,13 @@ draw_radio (GtkWidget *widget,
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GtkStyleContext *check_context;
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/* This information is taken from the GtkRadioButton docs, see "CSS nodes" */
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PathElt path[2] = {
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{ GTK_TYPE_LABEL, "radiobutton", NULL, NULL },
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{ G_TYPE_NONE, "radio", NULL, NULL }
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const char *path[2] = {
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"radiobutton",
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"radio"
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};
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button_context = get_style (&path[0], NULL);
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check_context = get_style (&path[1], button_context);
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button_context = get_style (NULL, path[0]);
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check_context = get_style (button_context, path[1]);
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gtk_style_context_set_state (check_context, state);
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